C++ LLPickInfo类代码示例

void LLToolGrab::stopGrab()
{
	LLViewerObject* objectp = mGrabPick.getObject();
	if (!objectp)
	{
		return;
	}

	LLPickInfo pick = mGrabPick;

	if (mMode == GRAB_NONPHYSICAL)
	{
		// for non-physical (touch) grabs,
		// gather surface info for this degrab (mouse-up)
		S32 x = gViewerWindow->getCurrentMouseX();
		S32 y = gViewerWindow->getCurrentMouseY();
		pick.mMousePt = LLCoordGL(x, y);
		pick.getSurfaceInfo();
	}

	// Next, send messages to simulator
	LLMessageSystem *msg = gMessageSystem;
	switch(mMode)
	{
	case GRAB_ACTIVE_CENTER:
	case GRAB_NONPHYSICAL:
	case GRAB_LOCKED:
		msg->newMessageFast(_PREHASH_ObjectDeGrab);
		msg->nextBlockFast(_PREHASH_AgentData);
		msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
		msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
		msg->nextBlockFast(_PREHASH_ObjectData);
		msg->addU32Fast(_PREHASH_LocalID, objectp->mLocalID);
		msg->nextBlock("SurfaceInfo");
		msg->addVector3("UVCoord", LLVector3(pick.mUVCoords));
		msg->addVector3("STCoord", LLVector3(pick.mSTCoords));
		msg->addS32Fast(_PREHASH_FaceIndex, pick.mObjectFace);
		msg->addVector3("Position", pick.mIntersection);
		msg->addVector3("Normal", pick.mNormal);
		msg->addVector3("Binormal", pick.mBinormal);

		msg->sendMessage(objectp->getRegion()->getHost());

		mVerticalDragging = FALSE;
		break;

	case GRAB_NOOBJECT:
	case GRAB_INACTIVE:
	default:
		// do nothing
		break;
	}

	mHideBuildHighlight = FALSE;
}

bool LLToolPie::handleMediaClick(const LLPickInfo& pick)
{
	//FIXME: how do we handle object in different parcel than us?
	LLParcel* parcel = LLViewerParcelMgr::getInstance()->getAgentParcel();
	LLPointer<LLViewerObject> objectp = pick.getObject();


	if (!parcel ||
		objectp.isNull() ||
		pick.mObjectFace < 0 || 
		pick.mObjectFace >= objectp->getNumTEs()) 
	{
		LLViewerMediaFocus::getInstance()->clearFocus();

		return false;
	}

	// Does this face have media?
	const LLTextureEntry* tep = objectp->getTE(pick.mObjectFace);
	if(!tep)
		return false;

	LLMediaEntry* mep = (tep->hasMedia()) ? tep->getMediaData() : NULL;
	if(!mep)
		return false;
	
	viewer_media_t media_impl = LLViewerMedia::getMediaImplFromTextureID(mep->getMediaID());

	if (gSavedSettings.getBOOL("MediaOnAPrimUI"))
	{
		if (!LLViewerMediaFocus::getInstance()->isFocusedOnFace(pick.getObject(), pick.mObjectFace) || media_impl.isNull())
		{
			// It's okay to give this a null impl
			LLViewerMediaFocus::getInstance()->setFocusFace(pick.getObject(), pick.mObjectFace, media_impl, pick.mNormal);
		}
		else
		{
			// Make sure keyboard focus is set to the media focus object.
			gFocusMgr.setKeyboardFocus(LLViewerMediaFocus::getInstance());
			
			media_impl->mouseDown(pick.mUVCoords, gKeyboard->currentMask(TRUE));
			mMediaMouseCaptureID = mep->getMediaID();
			setMouseCapture(TRUE);  // This object will send a mouse-up to the media when it loses capture.
		}

		return true;
	}

	LLViewerMediaFocus::getInstance()->clearFocus();

	return false;
}

static bool handle_media_click(const LLPickInfo& pick)
{
	//FIXME: how do we handle object in different parcel than us?
	LLParcel* parcel = LLViewerParcelMgr::getInstance()->getAgentParcel();
	LLPointer<LLViewerObject> objectp = pick.getObject();


	if (!parcel ||
		objectp.isNull() ||
		pick.mObjectFace < 0 || 
		pick.mObjectFace >= objectp->getNumTEs()) 
	{
		LLSelectMgr::getInstance()->deselect();
		LLViewerMediaFocus::getInstance()->clearFocus();

		return false;
	}



	// HACK: This is directly referencing an impl name.  BAD!
	// This can be removed when we have a truly generic media browser that only 
	// builds an impl based on the type of url it is passed.

	// is media playing on this face?
	const LLTextureEntry* tep = objectp->getTE(pick.mObjectFace);

	viewer_media_t media_impl = LLViewerMedia::getMediaImplFromTextureID(tep->getID());
	if (tep
		&& media_impl.notNull()
		&& media_impl->hasMedia()
		&& gSavedSettings.getBOOL("MediaOnAPrimUI"))
	{
		LLObjectSelectionHandle selection = LLViewerMediaFocus::getInstance()->getSelection(); 
		if (! selection->contains(pick.getObject(), pick.mObjectFace))
		{
			LLViewerMediaFocus::getInstance()->setFocusFace(TRUE, pick.getObject(), pick.mObjectFace, media_impl);
		}
		else
		{
			media_impl->mouseDown(pick.mXYCoords.mX, pick.mXYCoords.mY);
			media_impl->mouseCapture(); // the mouse-up will happen when capture is lost
		}

		return true;
	}

	LLSelectMgr::getInstance()->deselect();
	LLViewerMediaFocus::getInstance()->clearFocus();

	return false;
}

void LLToolGrab::pickCallback(const LLPickInfo& pick_info)
{
	LLToolGrab::getInstance()->mGrabPick = pick_info;
	LLViewerObject	*objectp = pick_info.getObject();

	BOOL extend_select = (pick_info.mKeyMask & MASK_SHIFT);

	if (!extend_select && !LLSelectMgr::getInstance()->getSelection()->isEmpty())
	{
		LLSelectMgr::getInstance()->deselectAll();
		LLToolGrab::getInstance()->mDeselectedThisClick = TRUE;
	}
	else
	{
		LLToolGrab::getInstance()->mDeselectedThisClick = FALSE;
	}

	// if not over object, do nothing
	if (!objectp)
	{
		LLToolGrab::getInstance()->setMouseCapture(TRUE);
		LLToolGrab::getInstance()->mMode = GRAB_NOOBJECT;
		LLToolGrab::getInstance()->mGrabPick.mObjectID.setNull();
	}
	else
	{
		LLToolGrab::getInstance()->handleObjectHit(LLToolGrab::getInstance()->mGrabPick);
	}
}

void LLHoverView::pickCallback(const LLPickInfo& pick_info)
{
	gHoverView->mLastPickInfo = pick_info;
	LLViewerObject* hit_obj = pick_info.getObject();

	if (hit_obj)
	{
		gHoverView->setHoverActive(TRUE);
		LLSelectMgr::getInstance()->setHoverObject(hit_obj, pick_info.mObjectFace);
		gHoverView->mLastHoverObject = hit_obj;
		gHoverView->mHoverOffset = pick_info.mObjectOffset;
	}
	else
	{
		gHoverView->mLastHoverObject = NULL;
	}

	// We didn't hit an object, but we did hit land.
	if (!hit_obj && pick_info.mPosGlobal != LLVector3d::zero)
	{
		gHoverView->setHoverActive(TRUE);
		gHoverView->mHoverLandGlobal = pick_info.mPosGlobal;
		LLViewerParcelMgr::getInstance()->requestHoverParcelProperties( gHoverView->mHoverLandGlobal );
	}
	else
	{
		gHoverView->mHoverLandGlobal = LLVector3d::zero;
	}

	gHoverView->mDoneHoverPick = TRUE;
}

void LLToolGrab::pickCallback(const LLPickInfo& pick_info)
{
	LLToolGrab::getInstance()->mGrabPick = pick_info;
	LLViewerObject	*objectp = pick_info.getObject();

	BOOL extend_select = (pick_info.mKeyMask & MASK_SHIFT);

	if (!extend_select && !LLSelectMgr::getInstance()->getSelection()->isEmpty())
	{
		LLSelectMgr::getInstance()->deselectAll();
		LLToolGrab::getInstance()->mDeselectedThisClick = TRUE;
	}
	else
	{
		LLToolGrab::getInstance()->mDeselectedThisClick = FALSE;
	}

	// if not over object, do nothing
//	if (!objectp)
// [RLVa:KB] - Checked: 2010-03-11 (RLVa-1.2.0e) | Added: RLVa-1.1.0l
	// Block initiating a drag operation on an object that can't be touched
	if ( (!objectp) || ((rlv_handler_t::isEnabled()) && (!gRlvHandler.canTouch(objectp, pick_info.mObjectOffset))) )
// [/RLVa:KB]
	{
		LLToolGrab::getInstance()->setMouseCapture(TRUE);
		LLToolGrab::getInstance()->mMode = GRAB_NOOBJECT;
		LLToolGrab::getInstance()->mGrabPick.mObjectID.setNull();
	}
	else
	{
		LLToolGrab::getInstance()->handleObjectHit(LLToolGrab::getInstance()->mGrabPick);
	}
}

void LLToolCompInspect::pickCallback(const LLPickInfo& pick_info)
{
	LLViewerObject* hit_obj = pick_info.getObject();

	if (!LLToolCompInspect::getInstance()->mMouseDown)
	{
		// fast click on object, but mouse is already up...just do select
		LLToolCompInspect::getInstance()->mSelectRect->handleObjectSelection(pick_info, gSavedSettings.getBOOL("EditLinkedParts"), FALSE);
		return;
	}

	if( hit_obj )
	{
		if (LLSelectMgr::getInstance()->getSelection()->getObjectCount())
		{
			LLEditMenuHandler::gEditMenuHandler = LLSelectMgr::getInstance();
		}
		LLToolCompInspect::getInstance()->setCurrentTool( LLToolCompInspect::getInstance()->mSelectRect );
		LLToolCompInspect::getInstance()->mSelectRect->handlePick( pick_info );

	}
	else
	{
		LLToolCompInspect::getInstance()->setCurrentTool( LLToolCompInspect::getInstance()->mSelectRect );
		LLToolCompInspect::getInstance()->mSelectRect->handlePick( pick_info );
	}
}

bool LLToolPie::handleMediaHover(const LLPickInfo& pick)
{
	//FIXME: how do we handle object in different parcel than us?
	LLParcel* parcel = LLViewerParcelMgr::getInstance()->getAgentParcel();
	if (!parcel) return false;

	LLPointer<LLViewerObject> objectp = pick.getObject();

	// Early out cases.  Must clear media hover. 
	// did not hit an object or did not hit a valid face
	if ( objectp.isNull() ||
		pick.mObjectFace < 0 || 
		pick.mObjectFace >= objectp->getNumTEs() )
	{
		LLViewerMediaFocus::getInstance()->clearHover();
		return false;
	}

	// Does this face have media?
	const LLTextureEntry* tep = objectp->getTE(pick.mObjectFace);
	if(!tep)
		return false;
	
	const LLMediaEntry* mep = tep->hasMedia() ? tep->getMediaData() : NULL;
	if (mep
		&& gSavedSettings.getBOOL("MediaOnAPrimUI"))
	{		
		viewer_media_t media_impl = LLViewerMedia::getMediaImplFromTextureID(mep->getMediaID());
		
		if(media_impl.notNull())
		{
			// Update media hover object
			if (!LLViewerMediaFocus::getInstance()->isHoveringOverFace(objectp, pick.mObjectFace))
			{
				LLViewerMediaFocus::getInstance()->setHoverFace(objectp, pick.mObjectFace, media_impl, pick.mNormal);
			}
			
			// If this is the focused media face, send mouse move events.
			if (LLViewerMediaFocus::getInstance()->isFocusedOnFace(objectp, pick.mObjectFace))
			{
				media_impl->mouseMove(pick.mUVCoords, gKeyboard->currentMask(TRUE));
				gViewerWindow->setCursor(media_impl->getLastSetCursor());
			}
			else
			{
				// This is not the focused face -- set the default cursor.
				gViewerWindow->setCursor(UI_CURSOR_ARROW);
			}

			return true;
		}
	}
	
	// In all other cases, clear media hover.
	LLViewerMediaFocus::getInstance()->clearHover();

	return false;
}

void LLToolFace::pickCallback(const LLPickInfo& pick_info)
{
    LLViewerObject* hit_obj	= pick_info.getObject();
    if (hit_obj)
    {
//MK
        if (gRRenabled && !gAgent.mRRInterface.canTouch (hit_obj))
        {
            return;
        }
//mk
        S32 hit_face = pick_info.mObjectFace;

        if (hit_obj->isAvatar())
        {
            // ...clicked on an avatar, so don't do anything
            return;
        }

        // ...clicked on a world object, try to pick the appropriate face

        if (pick_info.mKeyMask & MASK_SHIFT)
        {
            // If object not selected, need to inform sim
            if ( !hit_obj->isSelected() )
            {
                // object wasn't selected so add the object and face
                LLSelectMgr::getInstance()->selectObjectOnly(hit_obj, hit_face);
            }
            else if (!LLSelectMgr::getInstance()->getSelection()->contains(hit_obj, hit_face) )
            {
                // object is selected, but not this face, so add it.
                LLSelectMgr::getInstance()->addAsIndividual(hit_obj, hit_face);
            }
            else
            {
                // object is selected, as is this face, so remove the face.
                LLSelectMgr::getInstance()->remove(hit_obj, hit_face);

                // BUG: If you remove the last face, the simulator won't know about it.
            }
        }
        else
        {
            // clicked without modifiers, select only
            // this face
            LLSelectMgr::getInstance()->deselectAll();
            LLSelectMgr::getInstance()->selectObjectOnly(hit_obj, hit_face);
        }
    }
    else
    {
        if (!(pick_info.mKeyMask == MASK_SHIFT))
        {
            LLSelectMgr::getInstance()->deselectAll();
        }
    }
}

void LLToolIndividual::pickCallback(const LLPickInfo& pick_info)
{
	LLViewerObject* obj = pick_info.getObject();
	LLSelectMgr::getInstance()->deselectAll();
	if(obj)
	{
		LLSelectMgr::getInstance()->selectObjectOnly(obj);
	}
}

void LLToolGrab::stopGrab()
{
	LLViewerObject* objectp = mGrabPick.getObject();
	if (!objectp)
	{
		return;
	}

	LLPickInfo pick = mGrabPick;

	if (mMode == GRAB_NONPHYSICAL)
	{
		// for non-physical (touch) grabs,
		// gather surface info for this degrab (mouse-up)
		S32 x = gViewerWindow->getCurrentMouseX();
		S32 y = gViewerWindow->getCurrentMouseY();
		pick.mMousePt = LLCoordGL(x, y);
		pick.getSurfaceInfo();
	}

	// Next, send messages to simulator
	switch(mMode)
	{
	case GRAB_ACTIVE_CENTER:
	case GRAB_NONPHYSICAL:
	case GRAB_LOCKED:
		send_ObjectDeGrab_message(objectp, pick);
		mVerticalDragging = FALSE;
		break;

	case GRAB_NOOBJECT:
	case GRAB_INACTIVE:
	default:
		// do nothing
		break;
	}

	mHideBuildHighlight = FALSE;
}

static bool handle_media_hover(const LLPickInfo& pick)
{
	//FIXME: how do we handle object in different parcel than us?
	LLParcel* parcel = LLViewerParcelMgr::getInstance()->getAgentParcel();
	if (!parcel) return false;

	LLPointer<LLViewerObject> objectp = pick.getObject();

	// Early out cases.  Must clear mouse over media focus flag
	// did not hit an object or did not hit a valid face
	if ( objectp.isNull() ||
		pick.mObjectFace < 0 || 
		pick.mObjectFace >= objectp->getNumTEs() )
	{
		LLViewerMediaFocus::getInstance()->setMouseOverFlag(false);
		return false;
	}


	// HACK: This is directly referencing an impl name.  BAD!
	// This can be removed when we have a truly generic media browser that only 
	// builds an impl based on the type of url it is passed.

	// is media playing on this face?
	const LLTextureEntry* tep = objectp->getTE(pick.mObjectFace);
	viewer_media_t media_impl = LLViewerMedia::getMediaImplFromTextureID(tep->getID());
	if (tep
		&& media_impl.notNull()
		&& media_impl->hasMedia()
		&& gSavedSettings.getBOOL("MediaOnAPrimUI"))
	{
		if(LLViewerMediaFocus::getInstance()->getFocus())
		{
			media_impl->mouseMove(pick.mXYCoords.mX, pick.mXYCoords.mY);
		}

		// Set mouse over flag if unset
		if (! LLViewerMediaFocus::getInstance()->getMouseOverFlag())
		{
			LLSelectMgr::getInstance()->setHoverObject(objectp, pick.mObjectFace);
			LLViewerMediaFocus::getInstance()->setMouseOverFlag(true, media_impl);
			LLViewerMediaFocus::getInstance()->setPickInfo(pick);
		}

		return true;
	}
	LLViewerMediaFocus::getInstance()->setMouseOverFlag(false);

	return false;
}

// static
void LLToolPie::playCurrentMedia(const LLPickInfo& info)
{
	//FIXME: how do we handle object in different parcel than us?
	LLParcel* parcel = LLViewerParcelMgr::getInstance()->getAgentParcel();
	if (!parcel) return;
	
	LLPointer<LLViewerObject> objectp = info.getObject();
	
	// Early out cases.  Must clear media hover. 
	// did not hit an object or did not hit a valid face
	if ( objectp.isNull() ||
		info.mObjectFace < 0 || 
		info.mObjectFace >= objectp->getNumTEs() )
	{
		return;
	}
	
	// Does this face have media?
	const LLTextureEntry* tep = objectp->getTE(info.mObjectFace);
	if (!tep)
		return;
	
	const LLMediaEntry* mep = tep->hasMedia() ? tep->getMediaData() : NULL;
	if(!mep)
		return;
	
	//TODO: Can you Use it? 

	LLPluginClassMedia* media_plugin = NULL;
	
	viewer_media_t media_impl = LLViewerMedia::getMediaImplFromTextureID(mep->getMediaID());
		
	if(media_impl.notNull() && media_impl->hasMedia())
	{
		media_plugin = media_impl->getMediaPlugin();
		if (media_plugin && media_plugin->pluginSupportsMediaTime())
		{
			if(media_impl->isMediaPlaying())
			{
				media_impl->pause();
			}
			else 
			{
				media_impl->play();
			}
		}
	}


}

void LLToolPipette::pickCallback(const LLPickInfo& pick_info)
{
	LLViewerObject* hit_obj	= pick_info.getObject();
	LLSelectMgr::getInstance()->unhighlightAll();

	// if we clicked on a face of a valid prim, save off texture entry data
	if (hit_obj && 
		hit_obj->getPCode() == LL_PCODE_VOLUME &&
		pick_info.mObjectFace != -1)
	{
		//TODO: this should highlight the selected face only
		LLSelectMgr::getInstance()->highlightObjectOnly(hit_obj);
		const LLTextureEntry* entry = hit_obj->getTE(pick_info.mObjectFace);
		LLToolPipette::getInstance()->setTextureEntry(entry);
	}
}

void QToolAlign::pickCallback(const LLPickInfo& pick_info)
{
	LLViewerObject* object = pick_info.getObject();

	if (object)
	{
		if (object->isAvatar())
		{
			return;
		}

		if (pick_info.mKeyMask & MASK_SHIFT)
		{
			// If object not selected, select it
			if ( !object->isSelected() )
			{
				LLSelectMgr::getInstance()->selectObjectAndFamily(object);
			}
			else
			{
				LLSelectMgr::getInstance()->deselectObjectAndFamily(object);
			}
		}
		else
		{
			LLSelectMgr::getInstance()->deselectAll();
			LLSelectMgr::getInstance()->selectObjectAndFamily(object);
		}
		
	}
	else
	{
		if (!(pick_info.mKeyMask == MASK_SHIFT))
		{
			LLSelectMgr::getInstance()->deselectAll();
		}
	}

	LLSelectMgr::getInstance()->promoteSelectionToRoot();
}